Home
Class 11
CHEMISTRY
The heat change for the following reacti...

The heat change for the following reaction `C_((s)) + 2S_((s)) rarr CS_(2(l))` is known as

A

Heat of formation of `CS_(2)`

B

Heat of fusion of `CS_(2)`

C

Heat of vapourisation of `CS_(2)`

D

Heat of transition of carbon

Text Solution

Verified by Experts

The correct Answer is:
A

Formed from standard elemental state
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE- II) (LEVEL- II (ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS)|4 Videos
  • CHEMICAL THERMODYNAMICS

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE- II) (LEVEL- II (ADVANCED) MORE THAN ONCE CORRECT ANSWER TYPE QUESTIONS)|6 Videos
  • CHEMICAL THERMODYNAMICS

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE- I) (LEVEL- II (ADVANCED) INTEGER TYPE QUESTIONS)|5 Videos
  • CHEMICAL THERMODYANMICS

    AAKASH SERIES|Exercise Questions For Descriptive Answers|28 Videos
  • ELECTRON MIGRATION EFFECTS

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|10 Videos

Similar Questions

Explore conceptually related problems

The enthalpy of solution of BaCl_(2)(s) and BaCl_(2).2H_(2)O(s) " are " -20.6 and 8.8 KJ mol^(-1) , respectively, The enthalpy change for the reaction BaCl_(2(s)) + 2H_(2)O rarr BaCl_(2), 2H_(2)O_((s)) is:

C_((s))+O_(2(g))rarr CO_(2(g))+Q is ………………….

Balance the following chemical equations. iv) Cu_((s))+O_(2(g))rarr CuO_((s))

The following two reactions are known Fe_(2) O _(3 (s)) + 3 CO _((g )) to 2 Fe _((s)) +3 CO _(2 (g)) , Delta H =- 26.8 kJ//mol FeO _((s)) + CO _((g)) to Fe _((s)) +CO _(2 (g)), Delta H =- 16.5 kJ//mol The value of Delta H for the following reaction Fe _(2) O _(3 (s)) + CO _((g)) to 2 Feo_((s)) + CO _(2 (g)) is

Which of the following statements are not true about the following decomposition reaction? 2KCl_(3(s)) rarr 2KCl_((s)) +3O_(2(g))uarr

Suggest a scheme of classification of the following redox reactions (a) N_(2) (g) + O_(2) (g) rarr 2 NO (g) (b) 2 Pb (NO_(3))_(2) (s) rarr 2 PbO (s) + 4 NO_(2) (g) + O_(2) (g) (c) NaH(s) + H_(2) O (l) rarr NaOH (aq) + H_(2) (g) (d) 2NO_(2) (g) + 2OH^(-) (aq) rarr NO_(2)^(-) (aq) + NO_(3)^(-) (aq) + H_(2) O (l)

Calculate standard entropy change in the reaction Fe_(2)O_(3(s)) + 3H_(2(g)) rarr 2Fe_((s)) + 3H_(2)O_((l)) Given: S_(m)^(0) (Fe_(2)O_(3), s) = 87.4 S_(m)^(0) (Fe, s) = 27.3, S_(m)^(0) (H_(2)g) = 130.7, S_(m)^(0) (H_(2)O, 1) = 69.9 JK^(-1) mol^(-1)

Identify the substances that are oxidised and the substances that are reduced in the following reactions. (i) 4Na(s) + O_2(g) to 2Na_2O(s) (ii) CuO(s) + H_2(g) to Cu(s) + H_2O(l)

Balance the following chemical equations. iii) Ag_((s))+H_(2)S_((g)) rarr Ag_(2)S_((s))+H_(2)O_((l))

AAKASH SERIES-CHEMICAL THERMODYNAMICS-PRACTICE SHEET (EXERCISE- II) (LEVEL- I (MAIN) STRAIGHT OBJECTIVE TYPE QUESTIONS)
  1. The chemical process involved in the combustion reactions is

    Text Solution

    |

  2. MgSO(4(s)) + H(2)O rarr MgSO(4(aq)), Delta H = - 84K. Cals, Delta H of...

    Text Solution

    |

  3. The heat change for the following reaction C((s)) + 2S((s)) rarr CS(2(...

    Text Solution

    |

  4. N(2) + 3H(2) rarr 2NH(3), Delta H = - 46K. Cals. From the above reacti...

    Text Solution

    |

  5. The enthalpies of HCl, NaOH ,NaCl and H(2)O are -120, -82, -148 and -6...

    Text Solution

    |

  6. How much energy is released when 6 mole of octane is burnt in air? Giv...

    Text Solution

    |

  7. What is theheat of formation of C(6)H(6), given that the heats of comb...

    Text Solution

    |

  8. Heat of combustion of C(2)H(4) is -337 kCal. If 5.6 lit O(2) is used a...

    Text Solution

    |

  9. For the following reaction H((aq))^(+) + OH((aq))^(-) rarr H(2)O((l)) ...

    Text Solution

    |

  10. For the reaction 2H(2)O((l)) rarr H(3)O((aq))^(+) + OH((aq))^(-), the ...

    Text Solution

    |

  11. The heat of neutralisation is maximum when

    Text Solution

    |

  12. Assertion (A): Heat of neutralization of HClO(4) with NaOH is same as ...

    Text Solution

    |

  13. In which of the following combinatins of HCL and NaOH, the heat energy...

    Text Solution

    |

  14. The correct match is

    Text Solution

    |

  15. Heat of neutralisation for the reaction NaOH + HCl rarr NaCl + H(2)O "...

    Text Solution

    |

  16. Under the same conditions how many mL of 1M KOH and 0.5M H(2)SO(4) sol...

    Text Solution

    |

  17. Given that the data for neutralization of a weak acid (HA) and strong ...

    Text Solution

    |

  18. The standard heat of formation of sodium ions in aqueous solution from...

    Text Solution

    |

  19. Heat released in neutralisation of 1 mole of HF with excess NaoH is

    Text Solution

    |

  20. Hess's law states that

    Text Solution

    |